| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Treto | city | Nuevo Leon | Mexico | 25.69 | -99.20 | 830 | 7959 |
| Treto | city | Cantabria | Spain | 43.39 | -3.47 | 0 | 21754 |
| Treto | city | Euskadi | Spain | 43.22 | -3.41 | 1669 | 2715 |
| Tretorp | city | Kalmar | Sweden | 57.93 | 16.20 | 334 | 298 |
| Tretower | city | Powys | United Kingdom | 51.88 | -3.18 | 403 | 2412 |